公开(公告)号：US20050199199A1

公开(公告)日：2005-09-15

申请号：US11068928

申请日：2005-03-02

申请人： Kaoru Eguchi ,  Masaru Nemoto ,  Yoshihiko Yamada ,  Tamotsu Todo

发明人： Kaoru Eguchi ,  Masaru Nemoto ,  Yoshihiko Yamada ,  Tamotsu Todo

IPC分类号： F01L1/22 ,  F01L13/00 ,  F01L1/34

CPC分类号： F01L13/0021 ,  F01L1/143 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2103/00

摘要： A rocker arm 13 is rocked with respect to a control shaft 32 through a link arm 14 by rotation of a drive shaft 3. With this configuration, a rocking cam 7 is rocked with respect to the drive shaft 3 through a link member 15. A valve lifter 6 is pushed downward by rocking of the rocking cam 7. The control shaft 32 is integrally provided with a control cam which is eccentric with respect to an axis of the control shaft 32. If the control cam is rotated, a rocking fulcrum position of the rocker arm 13 is changed, thereby varying a valve-lift amount. An eccentric bush 22 is provided on an inner peripheral surface of the rocker arm 13 on an outer periphery side of the control cam. The eccentric bush 22 meshes with an inner peripheral gear formed on an inner periphery of the rocker arm 13 by an outer peripheral gear 39b, and is coupled to the rocker arm 13. This coupled state is released by moving the eccentric bush 22 in the axial direction. In this state, the eccentric bush 22 is rotated by a predetermined amount with respect to the control cam and the rocker arm 13, thereby adjusting the valve-lift amount.

摘要翻译： 通过驱动轴3的旋转，摇臂13相对于控制轴32通过连杆臂14摇摆。 利用这种构造，摆动凸轮7通过连杆构件15相对于驱动轴3摆动。 通过摇摆凸轮7的摆动来向下推动气门挺杆6。 控制轴32一体地设置有相对于控制轴32的轴线偏心的控制凸轮。 如果控制凸轮旋转，则摇臂13的摆动支点位置改变，从而改变气门升程量。 偏心衬套22设置在控制凸轮的外周侧的摇臂13的内周面上。 偏心衬套22与通过外周齿轮39b形成在摇臂13的内周上的内周齿轮啮合，并且联接到摇臂13。 通过使偏心衬套22沿轴向移动来释放该联接状态。 在这种状态下，偏心衬套22相对于控制凸轮和摇臂13旋转预定量，从而调节气门升程量。

公开(公告)号：US07032551B2

公开(公告)日：2006-04-25

申请号：US11068928

申请日：2005-03-02

申请人： Kaoru Eguchi ,  Masaru Nemoto ,  Yoshihiko Yamada ,  Tamotsu Todo

发明人： Kaoru Eguchi ,  Masaru Nemoto ,  Yoshihiko Yamada ,  Tamotsu Todo

IPC分类号： F01L1/34

CPC分类号： F01L13/0021 ,  F01L1/143 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2103/00

摘要： A rocker arm 13 is rocked with respect to a control shaft 32 through a link arm 14 by rotation of a drive shaft 3. With this configuration, a rocking cam 7 is rocked with respect to the drive shaft 3 through a link member 15. A valve lifter 6 is pushed downward by rocking of the rocking cam 7. The control shaft 32 is integrally provided with a control cam which is eccentric with respect to an axis of the control shaft 32. If the control cam is rotated, a rocking fulcrum position of the rocker arm 13 is changed, thereby varying a valve-lift amount. An eccentric bush 22 is provided on an inner peripheral surface of the rocker arm 13 on an outer periphery side of the control cam. The eccentric bush 22 meshes with an inner peripheral gear formed on an inner periphery of the rocker arm 13 by an outer peripheral gear 39b, and is coupled to the rocker arm 13. This coupled state is released by moving the eccentric bush 22 in the axial direction. In this state, the eccentric bush 22 is rotated by a predetermined amount with respect to the control cam and the rocker arm 13, thereby adjusting the valve-lift amount.

摘要翻译： 通过驱动轴3的旋转，摇臂13相对于控制轴32通过连杆臂14摇摆。 利用这种构造，摆动凸轮7通过连杆构件15相对于驱动轴3摆动。 通过摇摆凸轮7的摆动来向下推动气门挺杆6。 控制轴32一体地设置有相对于控制轴32的轴线偏心的控制凸轮。 如果控制凸轮旋转，则摇臂13的摆动支点位置改变，从而改变气门升程量。 偏心衬套22设置在控制凸轮的外周侧的摇臂13的内周面上。 偏心衬套22与通过外周齿轮39b形成在摇臂13的内周上的内周齿轮啮合，并且联接到摇臂13。 通过使偏心衬套22沿轴向移动来释放该联接状态。 在这种状态下，偏心衬套22相对于控制凸轮和摇臂13旋转预定量，从而调节气门升程量。

公开(公告)号：US07055477B2

公开(公告)日：2006-06-06

申请号：US10899074

申请日：2004-07-27

申请人： Tamotsu Todo ,  Yoshihiko Yamada ,  Yusuke Takagi

发明人： Tamotsu Todo ,  Yoshihiko Yamada ,  Yusuke Takagi

IPC分类号： F01L1/34

CPC分类号： F01L13/0026 ,  F01L1/022 ,  F01L2013/0073 ,  F01L2103/00 ,  Y10T74/2102 ,  Y10T74/2107

摘要： A VA apparatus includes a rocker arm coaxially swingably supported on a support shaft. The rocker arm is swung by torque transmitted from an engine to operate an engine valve and includes a first arm to which torque is transmitted and a second arm for operating the engine valve. The first and second arms, which are separate and distinct from each other, are swingable relative to each other. Bolts are provided to fix the first and second arms in a predetermined relative angle position.

摘要翻译： VA装置包括同轴可摆动地支撑在支撑轴上的摇臂。 摇臂通过从发动机传递的扭矩摆动，以操作发动机气门，并且包括传递扭矩的第一臂和用于操作发动机气门的第二臂。 彼此分开且不同的第一和第二臂可相对于彼此摆动。 提供螺栓以将第一和第二臂固定在预定的相对角度位置。

公开(公告)号：US20050028769A1

公开(公告)日：2005-02-10

申请号：US10899074

申请日：2004-07-27

申请人： Tamotsu Todo ,  Yoshihiko Yamada ,  Yusuke Takagi

发明人： Tamotsu Todo ,  Yoshihiko Yamada ,  Yusuke Takagi

IPC分类号： F01L1/18 ,  F01L13/00 ,  F01L1/34

CPC分类号： F01L13/0026 ,  F01L1/022 ,  F01L2013/0073 ,  F01L2103/00 ,  Y10T74/2102 ,  Y10T74/2107

摘要： A VA apparatus includes a rocker arm coaxially swingably supported on a support shaft. The rocker arm is swung by torque transmitted from an engine to operate an engine valve and includes a first arm to which torque is transmitted and a second arm for operating the engine valve. The first and second arms are separate and distinct from each other, and are swingable relative to each other. Bolts are provided to fix the first and second arms in a predetermined relative angle position.

摘要翻译： VA装置包括同轴可摆动地支撑在支撑轴上的摇臂。 摇臂通过从发动机传递的扭矩摆动，以操作发动机气门，并且包括传递扭矩的第一臂和用于操作发动机气门的第二臂。 第一和第二臂彼此分离并且彼此不同，并且可相对于彼此摆动。 提供螺栓以将第一和第二臂固定在预定的相对角度位置。

公开(公告)号：US07171931B2

公开(公告)日：2007-02-06

申请号：US11435758

申请日：2006-05-18

申请人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

发明人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

IPC分类号： F01L1/34

CPC分类号： F01L1/022 ,  F01L1/34 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2101/00 ,  F01L2820/032

摘要： A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system has an actuating mechanism for actuating the control shaft. The actuating mechanism comprises a threaded shaft that is rotated about its axis in accordance with the operation condition of the engine; a nut member operatively engaged with the threaded shaft, so that upon rotation of the threaded shaft the nut member runs axially along the threaded shaft; a link mechanism provided between the control shaft and the nut member, so that the axial movement of the nut member along the threaded shaft induces a rotational motion of the control shaft; and a biasing mechanism that biases the nut member relative to the threaded shaft at least at a predetermined range of the operation condition of the engine valve.

摘要翻译： 可变阀系统通过根据发动机的操作条件控制控制轴的角位置来改变发动机气门的操作状态。 该系统具有用于致动控制轴的致动机构。 致动机构包括螺纹轴，该螺纹轴根据发动机的运行状态绕其轴线旋转; 螺母构件与螺纹轴可操作地接合，使得当螺纹轴旋转时，螺母构件沿着螺纹轴轴向延伸; 连杆机构，设置在所述控制轴和所述螺母构件之间，使得所述螺母构件沿着所述螺纹轴的轴向运动引起所述控制轴的旋转运动; 以及偏置机构，其至少在发动机气门的操作状态的预定范围内相对于螺纹轴偏压螺母构件。

公开(公告)号：US20050211204A1

公开(公告)日：2005-09-29

申请号：US11076156

申请日：2005-03-10

申请人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

发明人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

IPC分类号： F01L1/34 ,  F01L13/00

CPC分类号： F01L1/022 ,  F01L1/34 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2101/00 ,  F01L2820/032

摘要： A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system has an actuating mechanism for actuating the control shaft. The actuating mechanism comprises a threaded shaft that is rotated about its axis in accordance with the operation condition of the engine; a nut member operatively engaged with the threaded shaft, so that upon rotation of the threaded shaft the nut member runs axially along the threaded shaft; a link mechanism provided between the control shaft and the nut member, so that the axial movement of the nut member along the threaded shaft induces a rotational motion of the control shaft; and a biasing mechanism that biases the nut member relative to the threaded shaft at least at a predetermined range of the operation condition of the engine valve.

摘要翻译： 可变阀系统通过根据发动机的操作条件控制控制轴的角位置来改变发动机气门的操作状态。 该系统具有用于致动控制轴的致动机构。 致动机构包括螺纹轴，该螺纹轴根据发动机的运行状态绕其轴线旋转; 螺母构件与螺纹轴可操作地接合，使得当螺纹轴旋转时，螺母构件沿着螺纹轴轴向延伸; 连杆机构，设置在所述控制轴和所述螺母构件之间，使得所述螺母构件沿着所述螺纹轴的轴向运动引起所述控制轴的旋转运动; 以及偏置机构，其至少在发动机气门的操作状态的预定范围内相对于螺纹轴偏压螺母构件。

公开(公告)号：US06263843B1

公开(公告)日：2001-07-24

申请号：US09402831

申请日：1999-10-13

申请人： Tamotsu Todo ,  Seiji Tsuruta ,  Hirokazu Uehara

发明人： Tamotsu Todo ,  Seiji Tsuruta ,  Hirokazu Uehara

IPC分类号： F01L1344

CPC分类号： F01L1/344 ,  Y02T10/146

摘要： A relative angular phase between a timing sprocket 1 and a camshaft 2 is changed by rotating a vane rotor 3 in a normal-rotation direction or in a reverse-rotation direction by way of relative application of hydraulic pressure to one of a timing-advance phase hydraulic pressure chamber 32 and a timing-retard phase hydraulic pressure chamber 33 both defined in a housing 6 and relative release of hydraulic pressure from the other of the hydraulic pressure chambers, in order to vary the opening and closing timing of an intake valve. A restricting mechanism 10 is also provided for reverse rotation of the vane rotor, which may occur during rotating from the timing-retard phase to the timing advance phase owing to a positive fluctuating torque of the camshaft. In the restricting mechanism, a plunger 52 is projected outward by way of a hydraulic pressure supplied to a high-pressure chamber 54, so that the plunger is constantly in abutted-contact with one side wall 13a, and whereby the plunger 52 produces a pushing a force or thrust by virtue of a check valve 56, so as to counteract the positive fluctuating torque. A turning-back phenomenon of the vane rotor can be restricted in presence of torque fluctuations of the camshaft during rotation of the vane rotor, thus enhancing the responsiveness of valve timing control.

摘要翻译： 正时链轮1和凸轮轴2之间的相对角度相位通过使叶片转子3沿正转方向或反向旋转方向旋转，通过相对于定时提前相位 液压室32和定时延迟相液压室33，两者都限定在壳体6中，并相对于另一个液压室相对地释放液压，以改变进气门的打开和关闭正时。 还设置有限制机构10，用于由于凸轮轴的正的波动转矩而从旋转时间延迟阶段到定时提前阶段期间可能发生的叶片转子的反向旋转。 在限制机构中，柱塞52通过供给高压室54的液压被向外突出，使得柱塞与一个侧壁13a不断地抵接，从而柱塞52产生推压 通过止回阀56的力或推力，以抵消正的波动转矩。 在叶片转子旋转期间，由于凸轮轴的扭矩波动的存在，可以限制叶片转子的回转现象，从而提高了气门正时控制的响应性。

公开(公告)号：US06672264B2

公开(公告)日：2004-01-06

申请号：US10267776

申请日：2002-10-10

申请人： Masahiko Watanabe ,  Tamotsu Todo

发明人： Masahiko Watanabe ,  Tamotsu Todo

IPC分类号： F01L134

CPC分类号： F01L1/022 ,  F01L1/352 ,  F01L2103/00

摘要： A first stopper device is arranged between an output element of a planetary gear unit and a drive rotation member driven by an output shaft of an engine. The first stopper device stops a relative rotation therebetween when a relative rotation angle therebetween comes to a first predetermined degree. A second stopper device may be arranged between a free element of the planetary gear unit and an input element of the planetary gear unit. The second stopper device stops a relative rotation therebetween when a relative rotation angle therebetween comes to a second predetermined degree.

摘要翻译： 第一止动装置布置在行星齿轮单元的输出元件和由发动机的输出轴驱动的驱动旋转构件之间。 当它们之间的相对旋转角度达到第一预定程度时，第一止动装置停止它们之间的相对旋转。 第二止动装置可以布置在行星齿轮单元的自由元件和行星齿轮单元的输入元件之间。 当它们之间的相对旋转角度达到第二预定程度时，第二止动装置停止它们之间的相对旋转。

公开(公告)号：US5918367A

公开(公告)日：1999-07-06

申请号：US839339

申请日：1997-04-18

申请人： Tamotsu Todo ,  Yasuo Fukuda ,  Noriomi Hosaka ,  Seiji Tsuruta ,  Kenji Suzuki ,  Shin Koizumi

发明人： Tamotsu Todo ,  Yasuo Fukuda ,  Noriomi Hosaka ,  Seiji Tsuruta ,  Kenji Suzuki ,  Shin Koizumi

IPC分类号： B23P15/00 ,  F01L1/14 ,  F01L1/20

CPC分类号： F01L1/205 ,  B23P15/00 ,  F01L1/143 ,  F01L2101/00 ,  F01L2103/00 ,  F02B2275/18 ,  Y10T29/49304 ,  Y10T29/4935

摘要： A method of producing a valve lifter to be used in a valve operating mechanism of an automotive vehicle. The valve lifter includes a skirt section, a crown section formed one end of the skirt section so that a cam of a camshaft is slidably contactable with the crown section, and a contacting section formed at an inside surface of the crown section and contactable with a valve stem of an engine valve. The production method comprises the following steps in the sequence set forth: (a) cold-forging a base material to form a valve lifter-shaped base material; (b) cold-pressing the base material to shape the valve lifter-shaped base material; (c) grinding an outer surface of the valve lifter-shaped base material to trim an outer shape of the valve-lifter-shaped base material; (d) totally machining the outer surface and an inner surface of the valve-shaped base material to adjust dimensions of parts of the valve lifter-shaped base material; (e) heat-treating only a part of the valve lifter-shaped base material, corresponding to the contacting section, to increase a hardness of the contacting section; and (f) grinding the contacting section to finish the contacting section.

摘要翻译： 一种制造用于机动车辆的气门操作机构的气门挺杆的方法。 该气门挺杆包括一个裙部，一顶部部分形成在裙部的一端，使得一凸轮轴的凸轮与该冠部可滑动接触;以及一接触部，该接触部形成于该冠部的内表面， 发动机气门的阀杆。 制造方法按照以下顺序包括以下步骤：（a）冷锻基材以形成气门挺杆状基材; （b）对基体材料进行冷压，以形成气门挺杆状基材; （c）研磨阀升降器基材的外表面，以修整升降器状基材的外形; （d）对所述阀状基材的外表面和内表面进行全面加工，以调节所述阀升降器基材的部件的尺寸; （e）仅对与所述接触部分相对应的所述阀提升器状基体的一部分进行热处理，以增加所述接触部的硬度; 和（f）研磨接触部分以完成接触部分。

公开(公告)号：US06805081B2

公开(公告)日：2004-10-19

申请号：US10455531

申请日：2003-06-06

申请人： Masahiko Watanabe ,  Tamotsu Todo ,  Kazuhiko Takayanagi

发明人： Masahiko Watanabe ,  Tamotsu Todo ,  Kazuhiko Takayanagi

IPC分类号： F01L134

CPC分类号： F01L1/344 ,  F01L1/34 ,  Y10T464/30

摘要： A valve timing control device for an internal combustion engine, comprises a drive rotary member rotated by a crankshaft of the engine, a driven rotary member to rotate a camshaft of the engine upon rotation of the drive rotary member; a rotational phase control mechanism having an intermediate rotary member rotated relative to the drive and driven rotary members to cause relative rotation between the drive and driven rotary members and an braking mechanism having a hysteresis brake that generates a braking force to cause the intermediate rotary member to rotate relative to the drive and driven rotary members.

摘要翻译： 一种用于内燃机的气门正时控制装置，包括由发动机的曲轴旋转的驱动旋转构件，驱动旋转构件，用于在驱动旋转构件旋转时使发动机的凸轮轴旋转; 旋转相位控制机构，其具有相对于驱动旋转构件旋转的中间旋转构件，以及驱动旋转构件和从动旋转构件之间的相对旋转;以及具有滞后制动器的制动机构，该制动机构产生制动力以使中间旋转构件 相对于驱动和驱动旋转构件旋转。